Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-06-000058
Filing Date
2006-02-22
Accepted
2006-02-22 13:40:31
Documents
14
Period of Report
2005-12-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. 2005 10-K mdu200510k.htm 10-K 4863957
2 MDU RESOURCES 1997 EXECUTIVE LONG-TERM INCENTIVE PLAN mdu1997longterm.htm EX-10.AE 130549
3 MDU RESOURCES EXECUTIVE INCENTIVE COMPENSATION PLAN mduresexecinccomp.htm EX-10.AF 33041
4 MONTANA-DAKOTA EXECUTIVE INCENTIVE COMPENSATION PLAN mdumondakexecinccomp.htm EX-10.AG 32334
5 RETIREMENT AGREEMENT FOR WARREN L. ROBINSON retirmementagrewlr.htm EX-10.AH 57622
6 STEVEN L. BIETZ CHANGE OF CONTROL EMPLOYMENT AGREEMENT bietzchangeofcontrol.htm EX-10.AI 96911
7 NICOLE A. KIVISTO CHANGE OF CONTROL EMPLOYEMENT AGREEMENT kivistochangeofcontrol.htm EX-10.AJ 96780
8 DORAN N. SCHWARTZ CHANGE OF CONTROL EMPLOYEMENT AGREEMENT schwartzchangeofcontrol.htm EX-10.AK 97071
9 MDU RESOURCES RATIO OF EARNINGS TO CHARGES & DIVIDENDS compofratio.htm EX-12 97126
10 SUBSIDIARIES OF MDU RESOURCES GROUP, INC. subsidiariesofmdu.htm EX-21 68352
11 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM indacctfirlconsent.htm EX-23 3885
12 CEO CERTIFICATION TO SECTION 302 ceosection302cert.htm EX-31.A 12713
13 CFO CERTIFICATION TO SECTION 302 cfosec302cert.htm EX-31.B 13591
14 CEO & CFO CERTIFICATION TO SECTION 906 ceocfocertsection906.htm EX-32 9046
  Complete submission text file 0000067716-06-000058.txt   5614512
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650 701-530-1013
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-03480 | Film No.: 06635588
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)